CN103855352A - Lithium battery module - Google Patents
Lithium battery module Download PDFInfo
- Publication number
- CN103855352A CN103855352A CN201210517629.4A CN201210517629A CN103855352A CN 103855352 A CN103855352 A CN 103855352A CN 201210517629 A CN201210517629 A CN 201210517629A CN 103855352 A CN103855352 A CN 103855352A
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- Prior art keywords
- lithium battery
- battery
- pad
- townhouse
- perforation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a lithium battery module. The lithium battery module comprises a first battery stack, a second battery stack, a plurality of conducting strips, a current converging structure, a battery fixing bracket and the like. By improving the conducting strips of the traditional lithium battery, the quality of welding between the conducting strips and the lithium battery can be uniform; meanwhile, by improving the current converging structure of the traditional current, an effect of uniformization of the consumption of each lithium battery in the working process is realized through the output on two sides. The current converging structure is further provided with a pore, so that the heat radiating effect of the lithium battery module also can be improved, the working efficiency of the lithium battery module can be improved, and the service life of the lithium battery module can be prolonged.
Description
Technical field
The present invention relates to a kind of lithium battery module, particularly relate to a kind of lithium battery module for motor vehicle.
Background technology
Because rechargeable type lithium battery (claiming again secondary cell) has advantages of high working voltage (3.4 ~ 3.8Volt), macro-energy density (>185Wh/Kg), lightweight, the life-span long and environmental protection, be widely used at present 3C electronic product, for example: mobile phone (Mobile Phone), notebook (NB/PC), flat computer (Tablet PC), video camera (Camcorder) and digital camera (Digital Camera).Estimate according to the statistics of IIT2009, whole world lithium cell core sales volume approximately reaches 30.5 hundred million, approximately have according to the global lithium cell core wherein sold out of statistics and 44% be used in mobile phone and hand-held device, approximately have 31.4% to be used in notebook, and approximately 5.5% be used in other consumption electronic products, the lithium cell core that these three kinds of products use accounts for 80% of commercially available amount.In recent years, cause the abnormal problem of global climate in order to tackle greenhouse effect, and reduce the factors such as dependence to oil, the each major country in the whole world and automaker are developed the oil electricity hybrid vehicle (or claiming motor vehicle driven by mixed power) of low pollution and low (/ zero) oil consumption invariably energetically, because the market of the electric hybrid vehicle of oil is ripe gradually, also facilitate the demand of lithium battery industry outside the said goods field to increase.
The operating voltage of general 3C Product is lower, and for weight reduction and volume, conventionally only need to use single or multiple serial or parallel connections lithium battery 40(Battery together) enough electric power can be provided.Comparatively speaking, electric motor car needs larger operating voltage and enough capacitances, and required enough electric power could supply of vehicles travels; Being applied to the lithium battery power supply of electric motor car, is to be a kind ofly one another in series or lithium battery module (Battery Pack) that lithium battery in parallel forms by many, and an average electric motor car needs thousands of lithium batteries easily.
Tradition is for the lithium battery module of electric motor car, has the uneven and unequal problem of the power consumption of each lithium battery under use state of lithium battery welding condition each other, needs practitioner to be solved.
Summary of the invention
In view of this, the present invention proposes a kind of lithium battery module, comprises one first battery pile, one second battery pile, multiple conducting strip, an electric current conflux structure and battery mounting etc., is now respectively described below.
Described the first battery pile and the second battery pile are made up of multiple lithium battery respectively, and the first battery pile is connected in parallel to each other and is formed by multiple lithium batteries, and the second battery pile is to be also connected in parallel to each other and to be formed by multiple lithium batteries.
Described each conducting strip comprises a first surface and is positioned at a second surface of the opposite side of this conducting strip, there is one first pad and one second pad at this first surface, this first pad has one first solder side of outstanding this first surface, this second pad has one second solder side of outstanding this first surface, and this first solder side and this second solder side are in order to be welded in the respectively electrode of this lithium battery tank.
The described electric current structure that confluxes comprises one first parallel connection grid, one second parallel connection grid and the series connection grid that conflux that conflux that conflux.The first parallel connection grid that conflux are electrically connected with the positive pole of each lithium battery of relation in parallel and this first battery pile, and have at least two the first buses as anodal output.The second parallel connection grid that conflux are electrically connected with the negative pole of each lithium battery of relation in parallel and this second battery pile, and have the output of at least two the second buses as negative pole.The series connection grid that conflux are electrically connected the negative pole of this first battery pile and the positive pole of this second battery pile, in order to by this first battery pile and the series connection of this second battery pile.
Described battery mounting, in order to fixing respectively this lithium battery tank, makes it arrange in the mode of presetting.
Below will further with specific embodiment, concept of the present invention be described.
Accompanying drawing explanation
Fig. 1 is the stereogram of the present invention's one specific embodiment;
Fig. 2 is the conducting strip schematic diagram () of the present invention's one specific embodiment;
Fig. 3 is the generalized section along Fig. 2 VI-VI hatching;
Fig. 4 is the welding operation schematic diagram of the present invention's one specific embodiment;
Fig. 5 is the conducting strip schematic diagram (two) of the present invention's one specific embodiment;
Fig. 6 is the electric current of the present invention's one specific embodiment structure decomposition map that confluxes;
Fig. 7 be the electric current of the present invention's one specific embodiment conflux structure partial schematic diagram (one);
Fig. 8 be the electric current of the present invention's one specific embodiment conflux structure partial schematic diagram (two);
Fig. 9 be the electric current of the present invention's one specific embodiment conflux structure partial schematic diagram (three);
Figure 10 is the battery mounting partial exploded view of the present invention's one specific embodiment;
Figure 11 is the local constitutional diagram of battery mounting () of the present invention's one specific embodiment;
Figure 12 is the local constitutional diagram of battery mounting (two) of the present invention's one specific embodiment.
Reference numeral
100: lithium battery module 10: conducting strip
11: first surface 12: second surface
20a: the first pad 201a: the first solder side
20b: the first pad 30a: the second pad
301a: the second solder side 30b: the second pad
40: lithium battery 40a, 40b, 40c: lithium battery
41a: electrode 41b: electrode
41c: electrode 500: the electric current structure that confluxes
Parallel connection in 50: the first grid 501 that conflux: extension
501a: perforation 51a: the first bus
51b: the first bus 52: the first townhouse
Connect row's parallel connection in 60: the second grid that conflux at 53: the first
61a: the second bus 61b: the second bus
62: the second and 63: the second connection rows of townhouse
70: grid 71: the first yoke plate of confluxing of connecting
72: the second and yoke plate 73a: series connection cylinder manifold
73b: series connection cylinder manifold 8: battery mounting
81: the first plate bodys 811: Part I
812: Part II 812a: the first recess
813: projection 814: connector
82: the second plate bodys of perforation in 819: the first
823: par 824: connecting portion
83: the three plate bodys of perforation in 829: the second
831: Part III 832: Part IV
832a: the second recess 839: the three perforation
90: otch 91: first direction
92: second direction BP1: the first battery pile
BP2: the second battery pile BP1-1: the first heap in parallel
BP2-1: the second heap I in parallel: welding current
S1: the first assembly welding contact S2: the assembly welding contact
S3: the 3rd assembly welding contact
Embodiment
Please refer to Fig. 1, for the schematic diagram of a specific embodiment of the present invention, disclose a lithium battery module 100, comprise one first battery pile BP1, one second battery pile BP2, multiple conducting strip 10, an electric current conflux structure 500 and battery mounting 8, be now respectively described below.
conducting strip:
The first battery pile BP1 and the second battery pile BP2 are made up of multiple lithium battery 40 respectively.The first battery pile BP1 is connected in parallel to each other and is formed by multiple lithium batteries 40, thereby its total output voltage is roughly equivalent to the output voltage of single lithium battery 40; The second battery pile BP2 is connected in parallel to each other and is formed by multiple lithium batteries 40, thereby its total output voltage is roughly equivalent to the output voltage of single lithium battery 40.In the time that the required power output of vehicle is higher, can reach by the more multiple battery pile of series connection; In the time that the required endurance of vehicle is longer, can increases the number of batteries of each battery pile or increase battery pile, for example newly-increased the 3rd battery pile, the 4th battery pile ... Deng.
Please refer to Fig. 2 and Fig. 3, be respectively the conducting strip schematic diagram () of the present invention's one specific embodiment and the generalized section along Fig. 2 VI-VI hatching, disclose the thin portion structure of a conducting strip 10.Each conducting strip 10 is hardwares of a kind of en plaque, respectively comprise a first surface 11 and a second surface 12 of opposite side that is positioned at conducting strip 10, there is one first pad 20a and one second pad 30a at first surface 11, the first pad 20a has one first solder side 201a of outstanding first surface 11, the second pad 30a has one second solder side 301a of outstanding first surface 11, the first solder side 201a and the second solder side 301a are in order to be welded in the negative or positive electrode of each lithium battery 40, the first solder side 201a and second its end of protruding most of solder side 301a are rendered as curved surface.The curvature of this curved surface depends on several outward appearances of closing of diel, and diel is sharper, and the first pad 20a of forming and the outward appearance of the second pad 30a are just sharper.The outward appearance of the first pad 20a and the second pad 30a is sharper, the impedance that is equivalent to contact site between conducting strip 10 and electrode of lithium cell just can be higher, thus, in pinpoint welding procedure, conducting strip 10 just more easily forms high temperature with the contact site of electrode of lithium cell.This kind of design for example, for the welding yield that improves high conductivity metal (copper), quite helpful.
In an embodiment, conducting strip 10 is for having the copper sheet of high conductivity, and it is suitable as multiple lithium batteries 40 electric power transfer element in series or in parallel with each other.A kind of execution mode of the first pad 20a and the second pad 30a is the salient point that utilizes stamping technology to form at the first surface 11 of conducting strip 10.According to operating voltage and this first outstanding solder side 201a of operating current control and the area of the second solder side 301a of lithium battery module, and then can control the essence bonding area of each solder side.
In an embodiment, conducting strip 10 has a slit 90, otch 90 is extended internally by the edge of conducting strip 10 and by between the first pad 20a and the second pad 30a, utilizes otch 90 to change the short-range missile power path between the first pad 20a and the second pad 30a.Carrying out resistance-type when welding as shown in Figure 4, in welding current I(figure shown in dotted arrow) can flow through again the second pad 30a via the electrode 41a of lithium battery 40a by the first pad 20a, it can allow heating position not exclusively be deposited on conducting strip 10, but part is led to the electrode 41a of lithium battery 40a, due to the surface area of electrode 41a and lithium battery 40a body, to be often greater than conducting strip 10 a lot of, thereby electric current is directed in electrode of lithium cell 41a and can improves integral heat sink effect.
In an embodiment, as shown in Figure 2 and Figure 3, each conducting strip 10 comprises two the first pad 20a and two the second pad 30a, and it is applicable to the welding between two lithium battery 40a and 40b.
In an embodiment, as shown in Figure 5, conducting strip 10 comprises the first assembly welding contact S1, the second assembly welding contact S2 and the 3rd assembly welding contact S3, every assembly welding contact comprises a first pad 20a and a second pad 30a, and every assembly welding contact can be welded in respectively electrode 41a, 41b and the 41c of lithium battery 40a, 40b and 40c.In addition, can also be aforementioned further expand to four, five for basis ... lithium battery.
One of them concept of the embodiment of described conducting strip is by the means of the area of a kind of pad of standing shape and control solder side, can reduce the contact impedance between conducting strip and the electrode of lithium battery, and be applicable to large current practice.On the other hand, utilize the otch between two or more pads, change the short-range missile power path between two or more pads, in the time carrying out resistance-type welding, welding current can flow through another pad via the electrode of lithium battery again by a pad wherein, to improve radiating effect.
the electric current structure that confluxes:
Please refer to Fig. 6 to Fig. 8, the electric current that is respectively the present invention's one specific embodiment structure decomposition map, electric current structure partial schematic diagram () and the electric current structure partial schematic diagram (two) that confluxes that confluxes that confluxes, disclose the electric current structure 500 that confluxes, comprise the first parallel connection grid 50, the second parallel connection grid 60 and series connection grid 70 that conflux that conflux that conflux.
The first parallel connection grid 50 that conflux are electrically connected with the positive pole of each lithium battery 40 of relation in parallel and the first battery pile BP1, and have at least two the first bus 51a and 51b as anodal output.The second parallel connection grid 60 that conflux are electrically connected with the negative pole of each lithium battery 40 of relation in parallel and the second battery pile BP2, and have at least two the second bus 61a and the 21b output as negative pole.The series connection grid 70 that conflux are electrically connected the negative pole of the first battery pile BP1 and the positive pole of the second battery pile BP2, in order to by the first battery pile BP1 and the second battery pile BP2 series connection; Confluxing to construct by above-mentioned electric current makes the positive pole of lithium battery module by two the first bus 51a and 11b output current, the negative pole of lithium battery module is by two the second bus 61a and 61b output current, electric current output by bilateral output balance lithium battery, and then there is consistent and the effect that can High-current output of balance operating state, consume.
The first parallel connection of the present invention grid 50, the second parallel connection grid 60 and series connection grid 70 that conflux that conflux that conflux are manufactured by conductive metallic material, in order to form the electric current of the transmission current grid (Bus-bar) that conflux, a preferred embodiment is wherein to be manufactured by the copper sheet of flat, can bear higher electric current output by the structure of wide flat shape, and there is the effect that slows down heat generation and quick conductive is provided, and then avoid hot stack.
According to one embodiment of the invention, the grid 50 that conflux of the first parallel connection wherein comprise first and townhouse 52 and two first bus 51a and 51b, first and townhouse 52 be electrically connected with the positive pole of each lithium battery 40 of relation in parallel and the first battery pile BP1, two the first bus 51a and 51b are located at respectively the relative both sides of the first battery pile BP1, and by the first connection row 53 electrical connections, the first also respectively with two, two ends the first bus 51a and 51b electric connection of townhouse 52, therefore, each lithium battery 40 of any the first heap BP1-1 in parallel, can by first and townhouse 52 again via nearest one output current among two the first bus 51a and 51b, make the first battery pile BP1 realize bilateral output by two the first bus 51a and 51b, wherein according to the specification of lithium battery module, conventionally comprise multiple the arranged side by side first heap BP1-1 in parallel each other, the positive pole of each lithium battery 40 of each the first heap BP1-1 in parallel with relation in parallel and first and townhouse 52 be electrically connected (for example welding), therefore, first and the quantity of townhouse 52 and the first heap BP1-1 in parallel in correspondence with each other.
In one embodiment, the second parallel connection grid 60 that conflux comprise second and townhouse 62 and two second bus 61a and 21b, second and townhouse 62 be electrically connected with the negative pole of each lithium battery 40 of relation in parallel and the second battery pile BP2, two the second bus 61a and 61b are located at respectively the relative both sides of the second battery pile BP2, and by the second connection row 63 electrical connections, the second also respectively with two, two ends the second bus 61a and 61b electric connection of townhouse 62, therefore, each lithium battery 40 of any the second heap BP2-1 in parallel, can by second and townhouse 62 again via nearest one output current among two the second bus 61a and 61b, make the second battery pile BP2 realize bilateral output by two the second bus 61a and 61b, wherein according to the specification of lithium battery module, conventionally comprise multiple the arranged side by side second heap BP2-1 in parallel each other, the negative pole of each lithium battery 40 of each the second heap BP2-1 in parallel with relation in parallel and second and townhouse 62 be electrically connected (for example welding), therefore, second and the quantity of townhouse 62 and the second heap BP2-1 in parallel in correspondence with each other.
In one embodiment, the series connection grid 70 that conflux comprise first and yoke plate 71, second and yoke plate 72 and two series connection cylinder manifold 73a and 73b, first and yoke plate 71 be electrically connected with the negative pole of each lithium battery 40 of relation in parallel and the first battery pile BP1, second and yoke plate 72 be electrically connected with the positive pole of each lithium battery 40 of relation in parallel and the second battery pile BP2, two series connection cylinder manifold 73a and 73b are located at respectively the relative both sides of lithium battery module, the first also respectively with two, two ends series connection cylinder manifold 73a and 73b electric connection of yoke plate 71, the second also respectively with two, two ends series connection cylinder manifold 73a and 33b electric connection of yoke plate 72, therefore, the negative pole of each lithium battery 40 of the first battery pile BP1, can by first and yoke plate 71 again via the positive pole series connection of each lithium battery 40 of one nearest in two series connection cylinder manifold 73a and 73b and the second battery pile BP2, wherein the negative pole of each lithium battery 40 of each the first heap BP1-1 in parallel with relation in parallel and first and yoke plate 71 be electrically connected (for example welding), therefore, first and the quantity of yoke plate 71 and the first heap BP1-1 in parallel in correspondence with each other, in addition, the positive pole of each lithium battery 40 of each the second heap BP2-1 in parallel with relation in parallel and second and yoke plate 72 be electrically connected (for example welding), therefore, second and the quantity of yoke plate 72 and the second heap BP2-1 in parallel in correspondence with each other.
In one embodiment, wherein conflux first and townhouse 52, the second parallel connection of grid 50 conflux second and townhouse 62 of grid 60 and series connection conflux first and the yoke plate 71 and second and yoke plate 72 of grid 70 of the first parallel connection, can be a kind of long slice structure being made up of single copper sheet or the segmentation structure being made up of the copper sheet of multiple separation; The conducting strip that wherein segmentation structure is electrically connected by the negative or positive electrode of multiple and lithium battery 40 is formed, can impel lithium battery 40 to form radiator, except expanding total area of dissipation, also helpfully avoid because hot differentia influence is to the usefulness balance between lithium battery 40 in quick soaking, the performance homogeneity of each lithium battery 40 improves relatively, also can reduce the decline of battery efficiency.
In one embodiment, comprise be located at the first parallel connection conflux grid 50 and the second parallel connection conflux grid 60 perforation 501a and be positioned at the extension 501 at the edge of perforation 501a, as shown in Figure 9.Perforation 501a can produce by the technology of punching press, then the copper sheet at the edge of perforation 501a is bent to form to extension 501, and its middle punch 501a and extension 501 are arranged at the stream of radiating airflow, can increase area of dissipation and have the effect of guiding heat radiation air-flow.In one embodiment, the setting position of perforation 501a first and the two ends of townhouse 52 respectively near the position of two the first bus 51a and 51b, second and the two ends of townhouse 62 respectively near the position of two the second bus 61a and 61b, when one side of being piled by lithium battery when radiating airflow flows to the opposite side of lithium battery heap by the gap between lithium battery 40 (these gaps are the stream of radiating airflow), can increase radiating effect by perforation 501a.
battery mounting:
Please refer to Figure 10 to Figure 12, be respectively battery mounting partial exploded view, the local constitutional diagram of battery mounting () and the local constitutional diagram of battery mounting (two) of the present invention's one specific embodiment, disclose the local feature of battery mounting 8.Described battery mounting 8 comprises multiple the first plate bodys 81, multiple the second plate body 82 and at least one the 3rd plate body 83.
As shown in figure 11, it illustrates single the first plate body 81, single the second plate body 82 and single the 3rd plate body 83.As shown in figure 12, it illustrates two the first plate bodys 81, two the second plate bodys 82 and single the 3rd plate bodys 83.The present embodiment by the first plate body 81 and the second plate body 82 each other combination of interactions can constantly expand along first direction 91, the 3rd 83 of plate bodys only have a side can supply to be connected with the first plate body 81 and the second plate body 82, and it is in order to be arranged on the both sides of battery mounting 8 along first direction 91.
Each the first plate body 81 is along first direction 91 level adjacency, and comprises a Part I 811, two Part II 812, multiple projection 813 and multiple connectors 814.
Part I 811 has multiple the first perforation 819 that can pass for each lithium battery 40, and each the first perforation 819 is adjacent one another are and along arranging perpendicular to a second direction 92 of first direction 91.
Two Part II 812 are connected to the both sides of Part I 811, respectively have multiple the first recess 812a, and each the first recess 812a is positioned at the edge of Part II 812 and arranges along second direction 92.The fixing hole that the lucky formation of each the first recess 812a of adjacent each the first plate body 81 can be passed for lithium battery 40.
814 of each connectors are not arranged at the two ends of each Part II 812 along second direction 92.As shown in the figure, the connector 814 of the present embodiment is a clamp hook piece, but the present invention is not as limit.
Each the second plate body 82 is arranged between the Part II 812 of two the first adjacent plate bodys 81, it has multiple the second perforation 829, vertically corresponding to each fixing hole and can pass for lithium battery 40, each the second perforation 829 is adjacent one another are and arrange along second direction 92, each the second plate body 82 has multiple connecting portions 824 along the two ends of second direction 92, connect respectively each connector 814 that is positioned at the first plate body 81.As shown in the figure, the connector 814 of the first plate body 81 is a clamp hook piece, and the connecting portion 824 of the second plate body is a draw-in groove, and described clamp hook piece can be fastened in this draw-in groove.
The 3rd plate body 83 levels are adjacent to the wherein one of each the first plate body 81, and each the 3rd plate body 83 comprises Part III 831 and Part IV 832.Part III 831 has multiple the 3rd perforation 839 that can pass for each lithium battery 40, and each the 3rd perforation 839 is equidistant adjacent and arrange along second direction 92 each other.A side and thickness that Part IV 832 is connected in Part III 831 are less than Part III 831.Part IV 832 has multiple the second recess 832a, and each second recess 832a is positioned at Part IV 832 this side towards the first plate body 81, and arranges along second direction 92.Multiple connectors are arranged at individually the two ends of Part IV 832 along second direction 92, and are connected in the connecting portion 824 of the second plate body 82.
In one embodiment, the wherein one of each the second plate body 82 is arranged between Part II 812 and Part IV 832.
In one embodiment, the thickness of the Part II 812 of the first plate body equals the thickness of the Part IV 832 of the 3rd plate body 83, and the add up thickness of the Part I 811 that just equals the first plate body 81 of the thickness of the thickness of Part II 812 and the second plate body 82.
In one embodiment, each the first perforation 819 is circular hole, and each projection 813 is less than the aperture of each the first perforation 819 along the width of first direction 91.In addition, each the second perforation 829 both sides along first direction 91 have respectively a par 823, and in the time that 82 of each the second plate bodys are not arranged between two adjacent Part II 812, each par 823 is connected to each projection 813 along first direction 91.
In one embodiment, the straight line that each the first perforation 819 center forms along first direction 91 is not superimposed on the straight line that each the second perforation 829 center forms along first direction 91.
By changing the number of holes of the first plate body 81 and the second plate body 82, and make the first plate body 81 and the second plate body 82 interconnect expansion and can be used for fixing the lithium battery 40 of varying number in first direction 91.In addition, battery mounting 8 also can further adopt aforementioned the 3rd plate body 83, because only having a wherein side, the 3rd plate body 83 can be used to be connected in the first plate body 81 and the second plate body 82, other side does not have linkage function, thereby each battery mounting 8 only needs to use two the 3rd plate bodys 83 conventionally, make its outset part at battery mounting 8.
To sum up, above-described embodiment is by the conducting strip of improveing traditional lithium battery so that the welding quality homogeneous between conducting strip and lithium battery, also the electric current of the improveing traditional lithium battery structure that confluxes, make the consume in the course of the work of each lithium battery reach the effect of homogenization, operating efficiency and the life-span that therefore generally speaking can improve lithium battery module by bilateral output.Except this, the battery mounting that previous embodiment adopts can, by increasing the first plate body and the second plate body to increase fixable lithium battery quantity, make lithium battery module be able to expand arbitrarily according to design requirement capacity and output.
Although technology contents of the present invention discloses as above with preferred embodiment; but it is not in order to limit the present invention; any personnel that are familiar with correlation technique; do not departing from spirit of the present invention a little change and the modification done; all should be covered by category of the present invention, therefore protection scope of the present invention should be defined and is as the criterion by appending claims.
Claims (12)
1. a lithium battery module, is characterized in that, comprises:
One first battery pile and one second battery pile, be made up of multiple lithium battery;
Multiple conducting strips, each conducting strip comprises a first surface and is positioned at a second surface of the opposite side of this conducting strip, there is one first pad and one second pad at this first surface, this first pad has one first solder side of outstanding this first surface, this second pad has one second solder side of outstanding this first surface, and this first solder side and this second solder side are in order to be welded in the respectively electrode of this lithium battery tank;
The one electric current structure that confluxes, comprises: the one first parallel connection grid that conflux, are electrically connected with the positive pole of each lithium battery of relation in parallel and this first battery pile, and have at least two the first buses as anodal output; The one second parallel connection grid that conflux, are electrically connected with the negative pole of each lithium battery of relation in parallel and this second battery pile, and have the output of at least two the second buses as negative pole; And series connection grid that conflux, be electrically connected the negative pole of this first battery pile and the positive pole of this second battery pile, in order to by this first battery pile and the series connection of this second battery pile; And
One battery mounting, in order to fixing respectively this lithium battery tank.
2. lithium battery module according to claim 1, is characterized in that, this battery mounting comprises:
Multiple the first plate bodys, along a first direction level adjacency, respectively this first plate body comprises each other:
One Part I, having can be for multiple the first perforation that respectively this battery can passes, and those first perforation are adjacent one another are and arrange along the second direction perpendicular to this first direction;
Two Part II, be connected to the both sides of this Part I, respectively this Part II has multiple the first recesses, those first recesses are positioned at the edge of this Part II and arrange along this second direction, and respectively this first recess of adjacent respectively this first plate body forms multiple fixing holes that can pass for this battery can;
Multiple projections, are positioned at this Part I, protrude one first height along the edge of respectively this first perforation towards the direction perpendicular to respectively this first perforation, and extend to this Part II of both sides along this first direction; And
Multiple connectors, are arranged at individually respectively this Part II along the two ends of this second direction; And
Multiple the second plate bodys, be arranged at individually between two these adjacent Part II, respectively this second plate body has vertically corresponding to each this fixing hole and multiple the second perforation that can pass for this battery can, those second perforation are adjacent one another are and arrange along this second direction, respectively this second plate body has multiple connecting portions along the two ends of this second direction, is connected in those connectors.
3. lithium battery module according to claim 2, is characterized in that, also comprises at least one the 3rd plate body, and level is adjacent to the wherein one of those the first plate bodys.
4. lithium battery module according to claim 3, is characterized in that, the 3rd plate body comprises:
One Part III, having can be for multiple the 3rd perforation that respectively this battery can passes, and those the 3rd perforation are adjacent one another are and arrange along this second direction;
One Part IV, the side and the thickness that are connected in this Part III are less than this Part III, and this Part IV has multiple the second recesses, and those second recesses are positioned at this Part IV and arrange towards a side of this first plate body and along this second direction; And
Multiple connectors, are arranged at individually the two ends of this Part IV along this second direction, are connected in those connecting portions.
5. lithium battery module according to claim 2, is characterized in that, the straight line that respectively center of this first perforation forms along this first direction is not superimposed on the straight line that those biperforate centers form along this first direction.
6. lithium battery module according to claim 1, is characterized in that, respectively this first surface of this conducting strip has more than one this first pad and more than one this second pad.
7. lithium battery module according to claim 1, it is characterized in that, respectively this first surface of this conducting strip has two assembly welding contacts, and this arbitrary assembly welding contact has this first pad and this second pad, this two assembly weldings contact respectively with the electrode welding of two these lithium batteries.
8. lithium battery module according to claim 1, is characterized in that, respectively this conducting strip has a kerf, and this otch is extended internally by the edge of this conducting strip and passes through between this first pad and this second pad.
9. lithium battery module according to claim 1, it is characterized in that, this first parallel connection grid that conflux comprise one first and townhouse and two the first buses, this first and townhouse with the positive pole electric connection of each lithium battery of relation in parallel and this first battery pile, this first and the two ends of townhouse be electrically connected with these two the first buses respectively, these two the first buses are located at respectively the relative both sides of this first battery pile.
10. lithium battery module according to claim 9, it is characterized in that, this second parallel connection grid that conflux comprise one second and townhouse and two the second buses, this second and townhouse with the negative pole electric connection of each lithium battery of relation in parallel and this second battery pile, this second and the two ends of townhouse be electrically connected with these two the second buses respectively, these two the second buses are located at respectively the relative both sides of this second battery pile.
11. lithium battery modules according to claim 10, is characterized in that, this first and townhouse with this second also townhouse formed by single copper sheet.
12. lithium battery modules according to claim 10, is characterized in that, this first and townhouse with this second also townhouse by multiple copper sheets interconnect form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517629.4A CN103855352B (en) | 2012-12-05 | 2012-12-05 | Lithium battery module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517629.4A CN103855352B (en) | 2012-12-05 | 2012-12-05 | Lithium battery module |
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| Publication Number | Publication Date |
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| CN103855352A true CN103855352A (en) | 2014-06-11 |
| CN103855352B CN103855352B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210517629.4A Expired - Fee Related CN103855352B (en) | 2012-12-05 | 2012-12-05 | Lithium battery module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063193A (en) * | 2016-11-08 | 2018-05-22 | 磐石电池股份有限公司 | With the cell parallel device for waiting resistance charge and discharge path |
| WO2019052429A1 (en) * | 2017-09-12 | 2019-03-21 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery packs to power electric vehicles |
| CN109802086A (en) * | 2018-12-14 | 2019-05-24 | 宁波利维能储能系统有限公司 | Single fillet welded battery module and its manufacturing method |
| WO2020110093A1 (en) * | 2018-11-30 | 2020-06-04 | Tong Yui Lung | Power supply apparatus and components thereof (intergroup connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101355144A (en) * | 2008-09-08 | 2009-01-28 | 赛恩斯能源科技有限公司 | Battery set |
| CN101542842A (en) * | 2006-11-20 | 2009-09-23 | 株式会社Lg化学 | Method for connection of conductive member to device |
-
2012
- 2012-12-05 CN CN201210517629.4A patent/CN103855352B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542842A (en) * | 2006-11-20 | 2009-09-23 | 株式会社Lg化学 | Method for connection of conductive member to device |
| CN101355144A (en) * | 2008-09-08 | 2009-01-28 | 赛恩斯能源科技有限公司 | Battery set |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063193A (en) * | 2016-11-08 | 2018-05-22 | 磐石电池股份有限公司 | With the cell parallel device for waiting resistance charge and discharge path |
| CN108063193B (en) * | 2016-11-08 | 2021-02-12 | 磐石电池股份有限公司 | Battery parallel arrangement with equal resistance charging and discharging path |
| WO2019052429A1 (en) * | 2017-09-12 | 2019-03-21 | Chongqing Jinkang New Energy Vehicle Co., Ltd. | Battery packs to power electric vehicles |
| WO2020110093A1 (en) * | 2018-11-30 | 2020-06-04 | Tong Yui Lung | Power supply apparatus and components thereof (intergroup connector |
| CN109802086A (en) * | 2018-12-14 | 2019-05-24 | 宁波利维能储能系统有限公司 | Single fillet welded battery module and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103855352B (en) | 2016-05-18 |
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